The groundbreaking Phi 300 pioneered the unique direct-coupled Class A triode input and driver circuitry that allowed VAC to get closer to the sound of the recording studio or concert hall than ever before. This consummately
musical performer is also extraordinarily flexibly, with settings
for fully balanced or single-ended input, selectable front panel attenuators,
150-watt/channel stereo or 300-watt mono modes, and triode or ultralinear
output operation. The visual celebration of tubes behind the thick front
glass is a fitting match for the joyous sound.

Its eight beam power output tubes yield 300 watts in dedicated mono mode
or 150 watts/channel in stereo mode at the choice of the user.
Front panel level controls may be engaged to aid in balancing biamplified
systems.

Both balanced XLR and single-ended RCA inputs are provided.
The chassis is machined aluminum, with the tubes beautifully showcased
behind 0.75” glass. Also included are standard 12-volt triggers. The Phi
300.1 is based on our direct coupled input & driver circuit
Both single-ended and balanced (fully balanced amplifier mode) inputs are
provided.

The chassis is custom machined 0.25” aluminum welded into a solid unitary
structure, finished in metallic black paint. The 1” thick aluminum front panel
is finished in hand rubbed silver metallic lacquer, with bias meter and tube
adjustors that make it easy to maintain and optimize. Output matching taps
are provided for 2, 4, and 8 ohm speakers.

“It is critical in manufacturing perfectionist speakers to use related components that reveal all that’s possible; especially in resolution, tonality, dynamics and sound-staging. To this end we’ve evaluated and tried a vast array of the highest end equipment available. VAC’s amplifiers and preamps have turned out to be references of the highest order, and not coincidentally, terrifically enjoyable to listen to.” - Alon Wolf, Owner, Magico Loudspeakers